CISCO2921/K9

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16 Review(s)
| 8 answered questions
Model: CISCO2921/K9 Cisco 2921 Router ISR G2
Detail: Cisco 2921 Router w/3 GE,4 EHWIC,3 DSP,1 SM,256MB CF,512MB DRAM,IPB
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Overview

Overview (CISCO2921/K9)

The Cisco 2921 router, supporting voice module, is designed for small offices.

Quick Specs

Figure 1 shows the appearance of the CISCO2921/k9.

CISCO2921/K9

Table 1 shows the Quick Specs of the CISCO2921/k9.

Product Code

CISCO2921/k9

Rack Units

2U

Interfaces

3 integrated 10/100/1000 Ethernet ports (RJ-45 only)

Expansion Slot(s)

2 service module slot

1 Internal Service Module slot

3 onboard digital signal processor slots

4 Enhanced high-speed WAN interface card (EHWIC) slots

RAM

512 MB (installed) / 2 GB (max)

Flash Memory

256 MB (installed) / 8 GB (max)

Dimensions

47 cm x 43.8 cm x 8.9 cm

Package Weight

18.93 Kg

Product Details

Figure 2 shows the front panel of the Cisco 2921 router.

CISCO2921/K9 Front LED

Note:

①AC OK  ②On/Off switch  ③AC power connector  ④Optional RPS adapter(blank panel shown)  ⑤LEDs area

Table 2 shows the LEDs area description.

LED

Color

Description

SYS

Solid green

Solid green indicates normal operation.

Blinking green

System is booting or is in ROM monitor mode.

Amber

System error.

Off

Power is off or system board is faulty.

ACT

Green

Solid or blinking indicates packet activity between the forwarding and routing engine and any I/O port.

Off

No packet transfers are occurring.

PoE

Green

PoE is available.

Amber

Power supply is not supplying PoE power.

RPS

Green

System is running on external RPS power supply.

PS

Green

System is running.

Amber

System is not running.

Figure 3 shows some LEDs on the back panel of the Cisco 2921 router.

CISCO2921/K9 Back LED

Note:

 ① Compact flash 0 and 1 (0, right)  ② ISM    ③ PVDM3 0,1 and 2 (0 right)  ④ EN (Enable USB console) ⑤ EN (Enable RJ-45 console)  

⑥ SFP S  ⑦ SFP EN  ⑧ S (Speed)  ⑨ L (Link)

Table 3 shows the description of these LEDs on the back panel.

LED

Color

Description

Location

CompactFlash 1

Green

Flash memory is busy.

Back Panel

Amber

Initialized with error.

Blinking Green then turns off

CompactFlash is ready for removal.

CompactFlash 0

Green

Flash memory is busy.

Back Panel

Amber

Initialized with error.

Blinking Green then turns off

CompactFlash is ready for removal.

S (Speed)

1 blink + pause

GE port operating at 10 Mb/s.

Back Panel

2 blink + pause

GE port operating at 100 Mb/s.

3 blink + pause

GE port operating at 1000 Mb/s.

L (Link)

Green

GE link is established.

Back Panel

Off

No GE link is established.

EN (RJ-45 console port)

Green

The RJ-45 console port is active.

Back Panel

EN (USB serial console port)

Green

The USB console port is active.

Back Panel

ISM

Green

Initialized.

Back Panel

Amber

Initialized with error.

Off

Not installed.

SFP S

Blinking green

Blinking frequency indicates port speed.

Back Panel

SFP EN

Off

Not present.

Back Panel

Green

Present and enabled.

Amber

Present with failure.

PVDM 0, 1 and 2

Green

PVDM is initialized.

Back Panel

Amber

PVDM is detected but not initialized.

Off

No PVDM installed.

Figure 4 show the expansion slots and ports on the back panel.

The Cisco 2921/K9 supports expansion functions with modules and cards.

CISCO2921/K9 Back Slot

Note:

① Compact flash 0 and 1 (0, right)         ② EHWIC 0,1,2 and 3 (0, far right)        ③ USB serial port 

④ RJ-45 serial console port                    ⑤ AUX port                                                ⑥ SFP

⑦ 10/100/1000 Ethernet port (GE 0/1 and GE 0/2)                                                  ⑧ 10/100/1000 Ethernet port GE 0/0    

⑨ Ground                                                    ⑩ USB 0 and 1 (1, top)                           ⑪ Service module slots   

Figure 5 shows the unboxing view of CISCO2921/K9.

cisco2921-k9-unpackaged

Cards and Licenses

Table 4 shows some recommended models for this router.

Cards

Description

SM-ES3G-16-P

Enhanced EtherSwitch Service Module, L2/L3 switching, 16* 10/100/1000 GE ports, Enhanced POE, Cisco EnergyWise technology

SM-ES3G-24-P

Enhanced EtherSwitch Service Module, L2/L3 switching, 24 * 10/100/1000 GE ports, Enhanced POE, Cisco EnergyWise technology

VWIC3-2MFT-G703

Cisco Voice/WAN Card VWIC3-2MFT-G703

HWIC-2T

2-Port Serial WAN Interface Card Cisco Router High-Speed WAN Interface card

EHWIC-1GE-SFP-CU

Cisco 1900, 2900, 3900 Router EHWIC WAN Card EHWIC-1GE-SFP-CU

EHWIC-4ESG

Four port 10/100/1000 Base-TX Gigabit Ethernet switch interface card for Cisco 1900 2900 3900 Routers

ISM-SRE-300-K9

Internal Services Module (ISM) with Services Ready Engine

PVDM3-16

16-channel high-density voice DSP module

MEM-CF-256U1GB

256MB to 1GB Compact Flash Upgrade for Cisco 1900,2900,3900

MEM-CF-256U2GB

256MB to 2GB Compact Flash Upgrade for Cisco 1900,2900,3900

MEM-CF-256U512MB

256MB to 512MB CF Upgrade for Cisco 1900,2900,3900 ISR

MEM-CF-256U4GB

256MB to 4GB Compact Flash Upgrade for Cisco 1900,2900,3900

MEMUSB-1024FT

1GB USB Flash Token

Licenses

Description

L-SL-29-SEC-K9=

Cisco 2900 License L-SL-29-SEC-K9 Security E-Delivery PAK for Cisco 2901-2951

L-SL-29-APP-K9=

Cisco Application Experience License ISR 2900 Series - includes licenses for: AppX, DATA and WAASX

L-SL-29-SECNPE-K9=

Cisco 2900 License L-SL-29-SECNPE-K9 SEC No Payload Encryption E PAK for Cisco 2901-2951

L-SL-29-UC-K9=

Cisco 2900 License L-SL-29-UC-K9= Unified Communication E-Delivery PAK for Cisco 2901-2951

Datasheet Download

Cisco 2900 Series Router Datasheet.pdf

Get More Information

Do you have any question about the Cisco 2921 router?

Contact us now via Live Chat or sales@router-switch.com.

Specification

Specification (CISCO2921/K9)

CISCO2921/K9 Specification

General

Device Type

Router

Enclosure Type

Rack-mountable - modular - 2U

Connectivity Technology

Wired

Data Link Protocol

Ethernet, Fast Ethernet, Gigabit Ethernet

Network / Transport Protocol

IPSec, L2TPv3

Routing Protocol

OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, static IP routing, IGMPv3, GRE, PIM-SSM, static IPv4 routing, static IPv6 routing, policy-

based routing (PBR), MPLS, Bidirectional Forwarding Detection (BFD), IPv4-to-IPv6 Multicast

Remote Management Protocol

SNMP, RMON, TR-069

Features

Firewall protection, VPN support, MPLS support, Syslog support, IPv6 support, Class-Based Weighted Fair Queuing (CBWFQ),

Weighted Random Early Detection (WRED), Web Services Management Agent (WSMA), NetFlow

Compliant Standards

IEEE 802.3, IEEE 802.1Q, IEEE 802.3af, IEEE 802.3ah, IEEE 802.1ah, IEEE 802.1ag, ANSI T1.101, ITU-T G.823, ITU-T G.824

RAM

512 MB (installed) / 2 GB (max)

Flash Memory

256 MB (installed) / 8 GB (max)

Status Indicators

Link activity, power

Expansion and Connectivity

Interfaces

3 x 10Base-T/100Base-TX/1000Base-T - RJ-45 ¦ Management : 1 x console - RJ-45 ¦ Management : 1 x console - mini-USB Type B ¦

Serial : 1 x auxiliary - RJ-45 ¦ USB : 2 x 4 pin USB Type A ¦ 1 x SFP (mini-GBIC)

Expansion Slot(s)

4 (total) / 4 (free) x HWIC ¦ 3 (total) / 3 (free) x PVDM ¦ 2 (total) / 1 (free) x CompactFlash Card ¦ 1 (total) / 1 (free) x expansion slot

Power

Power Device

Power supply - internal

Voltage Required

AC 120/230 V ( 50/60 Hz )

Miscellaneous

Dimensions (W × D × H)

17.2 × 18.5 × 3.5 in (47 x 43.8 x 8.9 cm)

Package Weight

41.7 lbs (18.93 Kg)

Weight

29.1 lbs (13.2 Kg)

Rack Mounting Kit

N/A

Compliant Standards

CISPR 22 Class A, CISPR 24, EN55024, EN55022 Class A, EN50082-1, AS/NZS 60950-1, ICES-003 Class A, CS-03, R&TTE,

FCC CFR47 Part 15, EN300-386, UL 60950-1, IEC 60950-1, EN 60950-1, BSMI CNS 13438, AS/NZS 3548 Class A, CAN/CSA

C22.2 No. 60950-1, VCCI V-3, EN 61000, TIA/EIA/IS-968

Software / System Requirements

OS Provided

Cisco IOS IP Base

Manufacturer Warranty

Service & Support

90 days warranty

Service & Support Details

Limited warranty - 90 days

Environmental Parameters

Min Operating Temperature

32 °F

Max Operating Temperature

104 °F

Humidity Range Operating

10 - 85%

Q&A

Faq (CISCO2921/K9)

Does this router Cisco 2921/K9 come with LAN port modules?

NO, as for 2921 it comes with no LAN port. But for routers more advanced than Cisco2901 support SM slots, you can chose SM, like SM-ES3G-16-P, support Layer2/3 ports can you use them as LAN ports.

Are these2921/k9, 3945/k9 have the same IOS?

NO, they have the different part number but their features are similar.

I've got a 2921 used to connect to physical sites over a WAN connection (BT Fibre). I was wondering if someone can tell me (or point me to) what speeds the 2921 can support in terms of throughput. We do dynamic routing but we don't so any encryption or NAT.

www.cisco.com/web/partners/downloads/765/tools/quickreference/routerperformance.pdf It says 2921 can support 245.76 mbps

I purchased brand new router from Cisco 2921 also I purchased an SFP-Transceiver (GLC-SX MM) along with this Router. However the Router does not Supporting SFP Transceiver. Currently the Router is having Universal IOS: “c2900-universalk9-mz.SP151-3.T1.bin”. Kindly provide the IOS i woud like to use. Is the same is IOS compatibility, thanks.

MAJOR untested bug in IOS 15.0(1) M3 which was the default image when we bought the devices *** AVOID IOS 15.0 series *** There are several bugs related to SFPs like: Does does recognize SFP does not recognize some EHWIC cards such as, but not limited to EHWIC 1GE-SFP-CU.

What is the exact HSEC-k9 license?

The HSEC-K9 license removes the curtailment enforced by the U.S. government export restrictions on the encrypted tunnel count and encrypted throughput. HSEC-K9 is available only on the Cisco 2921, Cisco 2951, Cisco 3925, Cisco 3945, Cisco 3925E, and Cisco 3945E. With the HSEC-K9 license, the ISRG2 router can go over the curtailment limit of 225 tunnels maximum for IP Security (IPsec) and encrypted throughput of 85-Mbps unidirectional traffic in or out of the ISR G2 router, with a bidirectional total of 170 Mbps. The Cisco 1941, 2901, and 2911 already have maximum encryption capacities within export limits.

What countries are classified license-free zones?

Countries belonging to the EU license-free zone include Australia, Austria, Belgium, Bulgaria, Canada, Cypress, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Japan, Latvia, Lithuania, Luxembourg, Malta, Netherlands, New Zealand, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Kingdom, and the United States.

We know the ISR2 series included VPN hardware acceleration but there is a "HSEC" which included an "advanced" encryption card. We are just trying to get my head around it. Is the HSEC bundle really needed over the standard SEC bundle? Now we need to support a 50meg Internet connection with 4 Site-to-Site VPNs and use of the firewall, NAT and QOS on each router. We are looking at the Cisco2921-SEC/K9 bundle. Does this sound about right?

If your internet link is 50mb, then a 2921 (non-HSEC) can handle the encryption/decryption. The standard SEC license comes with a software-based rate limiter of 85 Mbps each way. If the protocol does not handle loss/retransmissions very well, throughput can easily plummet. Testing in a lab environment with two Cisco 2921s, I saw speeds drop to 25 Mbps. Also info on the HSEC license can be found here in regards to what it is and what t does for you. It allows for addition through for encrypted traffic NASA higher number of VPN tunnels. http://www.cisco.com/en/US/prod/collateral/routers/ps10536/qa_c67_606268.pdf

We have installed a 60 day license for the security k9. The Cisco 2900 router we got. And we are trying to set up a client to site vpn on this and it still does not recognize the ipsec and isakmp commands. Is there a command I need to do to now enable ipsec and isakmp?

Make sure your Cisco 2900 took the license, issue 'show license' and verify. Show license shows that it is in there and active. I rebooted and it still throws an error whenever i issue crypto ipsec or crypto isakmp Here is your problem: from "show license" License State: Active, Not in Use, EULA accepted "not in use" is the key. Try using "license modify priority securityk9 high" or the config command "license boot module c2900 tech securityk9" to make this feature in use, rather than not in use.

Shipping & Payment

Delivery

Cargo will be delivered within 1 day after payment arrived. Tracking Number will be offered once delivery done.

Delivery OptionsEstimated Delivery Time
DHL 2-4 business days
Fedex 2-4 business days
Hong Kong EMS 5-10 business days
Hong Kong Air Parcel 10-20 business days
By Sea 10-20 business days

Notice:

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Warranty

Warranty

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Used Cisco product: 3 Month

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Reviews

Customer Reviews

4.8 5
4.8 (16 reviews)
5 Stars
13
4 Stars
3
3 Stars
0
2 Stars
0
1 Stars
0

Share your thoughts with other customers?

Posted on 7/20/2017
Verified Buyer
45
CISCO2921/K9

Router works very well, made the connections in my house a lot faster, as we have many devices all being used at once. Highly recommend it, good price as well.

Posted on 3/22/2017
Verified Buyer
55
Pretty good

Pretty good

Posted on 12/21/2016
Verified Buyer
55
Scelerisque novum productum

Item C% Cisco The original is novus, nova sarcina signati

Posted on 11/21/2016
Verified Buyer
55
operatur perfecte non repeat mos issues.I conservet.

operatur perfecte non repeat mos issues.I conservet.

Posted on 11/20/2016
Verified Buyer
55
CCIE Technical Support

Vae, bonum auxilium. Nescio quo enim est ipsum iter ipsi auctori CCIE artis ministerium nobis exempla eligere aptissima nostris, nisi tempus, nisi pecunia possideri

Posted on 11/19/2016
Verified Buyer
55
bonum est qualitas, esset melius, si modo quantitas

Sed bona qualitas, quantitas non est meus mos postulo L frusta potes ministramus?

Posted on 11/2/2016
Verified Buyer
55
Leadtime

Tempus plumbo diutius opinione. Feliciter bona pretium tellus.

Posted on 12/13/2015
Verified Buyer
45
Works perfectly

It works perfectly.

Posted on 10/11/2015
Verified Buyer
55
All parts are included

I received it with new sealed box. All parts are incuded.

Posted on 7/6/2015
Verified Buyer
55
Very Polite

Very polite and feeback is extremely quick

Posted on 3/21/2015
Verified Buyer
55
Good

Great condition and good for my lab

Posted on 9/28/2014
Verified Buyer
55
Good Price

You offer a good discount. This price is lower than I have seen.

Posted on 9/23/2013
Verified Buyer
55
Cisco 2921

I\'ve installed well over 100 of these routers, I can only identify one hardware failure in what amounts to several hundred uptime-years. Really excellent!

Posted on 9/23/2013
Verified Buyer
55
CISCO2921/K9

Hi, I need a router doing simple SNAT. There will be around 500 to 2000 users behind the device. What NAT performance can be expected?
Btw, there will be no additional service running, so simple SNAT, no ACL, no firewall.

Posted on 7/26/2011
Verified Buyer
45
Good Cisco Router for our school

Good Cisco 2900 router from you for our school. A 2900 is actually a switch. We probably have a dozen or so to support the 100-150 users. Great!

Posted on 5/28/2010
Verified Buyer
55
we need more information

plz post more information for products

Ok,thanks for your advise.

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